<div class="preview"> 
  <div class="previewLabel">{{label}}</div>
  <div class="previewBox">
    <th-tetrimino *ngIf="shape" [shape]="shape" [x]="x" [y]="y"></th-tetrimino>
    <ng-content></ng-content>
    <div class="previewBorder"></div>
  </div>
</div>